Raspberry Pi 3 Model B+ integration  

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Ronald Meza
(@ronaldm)
Active Member

Good day Prusa family!

I am wanting to make my MK3S wireless capable. I've read about adding a raspberry pi Zero to the Einsy, but I have also read that some problems have been detected when printing remotely while using the RP Zero. Is it possible to enable wireless connection to the printer using a Raspberry Pi model B+ via usb port? or is it even possible to establish connection with the afore mentioned board at all?

Link to the board I'm looking at --> https://www.amazon.ca/dp/B07BFH96M3/?coliid=I1FVT5YUDM46IU&colid=1L6EUHWT8CP3C&psc=1

Thank you in advance!

Posted : 07/09/2019 12:47 am
bobstro
(@bobstro)
Illustrious Member

A RPi 3B is perfect for running Octoprint to do exactly what you're describing. Setup takes a few minutes.

My notes and disclaimers on 3D printing and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan...
Posted : 07/09/2019 4:19 pm
guy.k2
(@guy-k2)
Noble Member

Be sure to specify the country code while configuring wifi. Don't ask me how I know that is easy to forget.

Posted : 07/09/2019 5:30 pm
Ronald Meza
(@ronaldm)
Active Member

Hey Bobstro!

That sounds promising! Do you know where could I find a guide to program it and make it work with the MK3S? 

Or the same RP Zero configuration will work with the RP B+?

Posted : 07/09/2019 6:11 pm
Robert-mm200
(@robert-rmm200)
Noble Member

You will find some nice cases on Thingiverse for your Pi that will mount directly on the MK3 frame. 3B and 4 (overkill) are both available.

You have a choice of power - it's own wall wart or a buck converter to the MK3 PSU. Pick up a camera while you are at it.

OctoLapse is the coolest thing going.

I am aware of the arguments against - but I use the MK3 24V. I don't want more wires out of my enclosure...

Posted : 07/09/2019 10:00 pm
bobstro
(@bobstro)
Illustrious Member

From memory, there's a version of OctoPi for the multi-core CPUs. Download that, edit the config and fire it up. Plug in your USB cable and you're all set. 

My notes and disclaimers on 3D printing and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan...
Posted : 07/09/2019 10:23 pm
scottsh
(@scottsh)
Active Member

Don’t you lose power loss/recovery if you use OctoPrint?

Posted : 08/09/2019 2:57 am
bobstro
(@bobstro)
Illustrious Member
Posted by: scottsh

Don’t you lose power loss/recovery if you use OctoPrint?

It's a trade-off. You do lose power recovery if printing over USB, which includes Octoprint. Bummer, but it's not something I count on too much. What you gain back is remove management and monitoring, the ability to cancel single parts in a multi-part print, a host of diagnostics and convenience. The ability to print directly from PrusaSlicer is really nice, and not having to battle that stupid FlashAir card is a godsend.

My notes and disclaimers on 3D printing and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan...
Posted : 08/09/2019 3:01 am
bobstro
(@bobstro)
Illustrious Member
Posted by: Robert-mm200

[...] I am aware of the arguments against - but I use the MK3 24V. I don't want more wires out of my enclosure...

Just beware the perils of using something dependent on what it monitors. The Prusa power supplies are a bit borderline, so a bad combination of heavy printer activity and CPU utilization might cause problems or resets.

My notes and disclaimers on 3D printing and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan...
Posted : 08/09/2019 3:03 am
scottsh
(@scottsh)
Active Member
Posted by: bobstro
Posted by: scottsh

Don’t you lose power loss/recovery if you use OctoPrint?

It's a trade-off. You do lose power recovery if printing over USB, which includes Octoprint. Bummer, but it's not something I count on too much. What you gain back is remove management and monitoring, the ability to cancel single parts in a multi-part print, a host of diagnostics and convenience. The ability to print directly from PrusaSlicer is really nice, and not having to battle that stupid FlashAir card is a godsend.

Great points. I had mine hooked up and I was using it until a buddy convinced me power loss protection was important. I’m going to rethink it. Having to use flash cards is getting old. 

Posted : 08/09/2019 3:06 am
david.a66
(@david-a66)
Honorable Member

i use octoprint + a UPS - no need for power fail recovery

Posted : 08/09/2019 4:53 am
guy.k2
(@guy-k2)
Noble Member

UPS + automatic power generator. No power fail recovery ever used here. The benefits of the Raspberry Pi and Octoprint tremendously increase  printer flexibility and all remote monitoring for safety.

Posted : 08/09/2019 5:08 am
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